Petty Knives: The Essential Japanese Utility Knife
The Petty knife (derived from the French word "petit," meaning small) is the Japanese equivalent of a Western utility or paring knife. While your Gyuto or Santoku handles the heavy lifting, the Petty is designed for supreme agility and precision. [Image of a Japanese Petty knife being used for delicate tasks like trimming meat or peeling fruit] It is the absolute must-have companion blade in any serious culinary kit.
The Tokushu Expert Take: Why You Need One
You cannot comfortably hull strawberries, peel an apple in-hand, or carefully trim the silver skin off a tenderloin with a 240mm Gyuto. The Petty is the knife you grab when you need ultimate control. It is also our favorite knife to pull out for quick tasks—like mincing a single clove of garlic or slicing a lime—when you don't want to wash a massive chef's knife.
How to Choose the Right Size Petty
Petty knives generally range from 75mm to 150mm. Choosing the right one depends on whether you prefer to work "in-hand" (off the cutting board) or on the board.
| Blade Length | Best Used For | Western Equivalent |
|---|---|---|
| 75mm - 90mm | Strictly in-hand work: peeling vegetables, hulling fruit, scoring dough. | Paring Knife |
| 120mm - 135mm | The sweet spot. Great for trimming proteins and quick, small board work (shallots, garlic). | Utility Knife |
| 150mm | Acts like a "mini-Gyuto." Perfect for small cutting boards, slicing small meats, and line cooks. |